I tried to mod my old 3ds with mset9 yesterday and everything went fine, i even was able to download mk7, later i closed the console on the home menu (without any program opened) and when i opened the console again it was on a black screen with a blue permanent light.
Im able to enter recovery mode just without the sd (updating didnt work)
Im able to enter gm9 aswell with or without the sd
The sd was fat32 the whole process
I dont know what to do!